<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>帅哥美女走一走</title>
  <style>
    
  </style>
</head>

<body>

  <div id="app">
   <ul>
     <li v-for="(item,index) in list" :key="index">{{item}}</li>
   </ul>
   <button @click="click">走一走</button>
  </div>

  <script src="./vue.js"></script>
  <script>
  
    const app = new Vue({
      el: '#app',
      data: {
        list:[
          '帅哥',
          '美女',
          '程序猿',
        ]
      },
      methods:{
        click(){
          this.list.push(this.list.shift())
        }
      }
    })
  </script>

</body>

</html>